Usually, you don’t need to get vaccinated again after having measles. This is because after having measles, the body will produce antibodies, which are immune for life, and you will not get measles again, so there is no need to get vaccinated against measles again. Measles is a highly contagious respiratory disease, and if you are susceptible or have been in contact with a person with measles, the infection rate can be more than 90%. Measles is most common in children between the ages of 8 months and 5 years, and is more common in children who have not been vaccinated against measles. The onset of the disease is relatively rapid, with a rash appearing in about 2-3 days, accompanied by fever and cough. It is best for susceptible people over 8 months of age to receive the measles vaccine in a timely manner, and then repeat the vaccination when they are 7 years old. This is the most effective way to prevent measles, and the measles vaccine can produce antibodies in the body to avoid being infected by the measles virus. For more information about vaccines, you should go to the hospital and consult a specialist for guidance.